com.google.cloud.tools.eclipse.appengine.deploy.ui.DeployPreferencesDialog.java Source code

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Here is the source code for com.google.cloud.tools.eclipse.appengine.deploy.ui.DeployPreferencesDialog.java

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/*
 * Copyright 2016 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.cloud.tools.eclipse.appengine.deploy.ui;

import org.eclipse.core.databinding.ValidationStatusProvider;
import org.eclipse.core.resources.IProject;
import org.eclipse.jface.databinding.dialog.TitleAreaDialogSupport;
import org.eclipse.jface.databinding.dialog.ValidationMessageProvider;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;

import com.google.api.client.auth.oauth2.Credential;
import com.google.cloud.tools.eclipse.appengine.login.IGoogleLoginService;
import com.google.cloud.tools.eclipse.appengine.ui.AppEngineImages;
import com.google.common.base.Preconditions;

public class DeployPreferencesDialog extends TitleAreaDialog {

    // if the image is smaller (e.g. 32x32, it will break the layout of the TitleAreaDialog)
    // seems like an Eclipse/JFace bug
    private Image titleImage = AppEngineImages.appEngine(64).createImage();

    private StandardDeployPreferencesPanel content;
    private IProject project;
    private IGoogleLoginService loginService;

    public DeployPreferencesDialog(Shell parentShell, IProject project, IGoogleLoginService loginService) {
        super(parentShell);

        Preconditions.checkNotNull(project, "project is null");
        Preconditions.checkNotNull(loginService, "loginService is null");
        this.project = project;
        this.loginService = loginService;
    }

    @Override
    protected Control createContents(Composite parent) {
        Control contents = super.createContents(parent);

        getShell().setText(Messages.getString("deploy.preferences.dialog.title"));
        setTitle(Messages.getString("deploy.preferences.dialog.title.withProject", project.getName()));

        if (titleImage != null) {
            setTitleImage(titleImage);
        }

        getButton(IDialogConstants.OK_ID).setText(Messages.getString("deploy"));

        // TitleAreaDialogSupport does not validate initially, let's trigger validation this way
        content.getDataBindingContext().updateTargets();

        return contents;
    }

    @Override
    protected Control createDialogArea(final Composite parent) {
        Composite dialogArea = (Composite) super.createDialogArea(parent);

        Composite container = new Composite(dialogArea, SWT.NONE);
        content = new StandardDeployPreferencesPanel(container, project, loginService, getLayoutChangedHandler(),
                true /* requireValues */);
        GridDataFactory.fillDefaults().grab(true, false).applyTo(content);

        // we pull in Dialog's content margins which are zeroed out by TitleAreaDialog
        GridDataFactory.fillDefaults().grab(true, true).applyTo(container);
        GridLayoutFactory.fillDefaults()
                .margins(convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN),
                        convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN))
                .spacing(convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING),
                        convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING))
                .generateLayout(container);

        TitleAreaDialogSupport.create(this, content.getDataBindingContext())
                .setValidationMessageProvider(new ValidationMessageProvider() {
                    @Override
                    public int getMessageType(ValidationStatusProvider statusProvider) {
                        int type = super.getMessageType(statusProvider);
                        setValid(type != IMessageProvider.ERROR);
                        return type;
                    }
                });
        return dialogArea;
    }

    private Runnable getLayoutChangedHandler() {
        return new Runnable() {
            @Override
            public void run() {
                Shell shell = getShell();
                shell.setMinimumSize(shell.getSize().x, 0);
                shell.pack();
                shell.setMinimumSize(shell.getSize());
            }
        };
    }

    @Override
    protected void okPressed() {
        content.savePreferences();
        super.okPressed();
    }

    @Override
    public boolean close() {
        titleImage.dispose();
        return super.close();
    }

    @Override
    public boolean isHelpAvailable() {
        return false;
    }

    private void setValid(boolean isValid) {
        Button okButton = getButton(IDialogConstants.OK_ID);
        if (okButton != null) {
            okButton.setEnabled(isValid);
        }
    }

    public Credential getCredential() {
        return content.getSelectedCredential();
    }
}